Infinite artifact ETBInfinite artifact LTBInfinite artifact sacrifice triggersInfinite artifact tokensInfinite creature ETBInfinite creature LTBInfinite Treasure tokensInfinite colored manaInfinite creature tokensInfinite death triggersInfinite mana creatures you control can produceInfinite creature sacrifice triggersInfinite untap of creatures you controlInfinitely large creature until end of turn
How it works
Activate Jan Jansen's first ability by tapping it and sacrificing an artifact creature, creating three Treasure tokens due to Xorn.
Activate three Treasures by tapping and sacrificing them, adding 6 due to Goldspan Dragon.
Activate Jan Jansen by paying 3 and untapping it, giving it +2/+2 until end of turn.
Activate Jan Jansen's first ability by tapping it and sacrificing an artifact creature, creating three Treasure tokens due to Xorn.
Activate Jan Jansen by paying 3 and untapping it, giving it +2/+2 until end of turn.
Activate Jan Jansen's second ability by tapping it and sacrificing a Treasure, creating two 1/1 Construct artifact creature tokens.
Activate two Treasures by tapping and sacrificing them, adding 4 due to Goldspan Dragon.
Activate Jan Jansen by paying 3 and untapping it, giving it +2/+2 until end of turn.